Madison Area Technical College Authorized Investment Providers For specific investment provider information, please click on the investment provider name of your choice to visit the company's website. 403(b) American Funds/Capital Group - Plan Number: 77237(800) 421-4225 Fidelity Investments - Plan Number: 50047(800) 343-0860 TIAA - Plan Number: 375024(800) 842-2252 Vanguard Investments - Plan Number: 431964(800) 569-4903